We know the slope so substitute the slope first.
[tex]y=-\frac{1}{2}x+b[/tex]
Then substitute the ordered pairs inside the equation.
[tex]-6=-\frac{1}{2}(3)+b\\-6=-\frac{3}{2}+b\\-6+\frac{3}{2}=b \\b=-\frac{9}{2}[/tex]
Graph a line that contains the point ***(3,-6)*** and has a slope of ***-1/2***
The graph below is the "line" that you ask. There's no x = -9 so just plot y = -4.5 and draw.
